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Finding the Fourth Proportional to 6,978, 10,462.14 and 3,279.54

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Solution

The fourth proportional to 6,978, 10,462.14 and 3,279.54 is: 4,917.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,978 : 10,462.14 = 3,279.54 : x
  2. Step 2: Convert to fraction form
    6,978/10,462.14 = 3,279.54/x
  3. Step 3: Cross multiply
    6,978x = 10,462.14 × 3,279.54
  4. Step 4: Simplify right side
    6,978x = 34,311,006.62
  5. Step 5: Solve for x
    x = 34,311,006.62/6,978
  6. Step 6: Final answer
    x = 4,917.03

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